require 'stf/model/device'

module Stf
# can not inherite from Array because http://words.steveklabnik.com/beware-subclassing-ruby-core-classes
  class DeviceList
    def initialize(devices)
      if devices.nil?
        @devices = Array.new
      else
        @devices = devices.map {|d| (d.kind_of? Device) ? d : Device.new(d)}
      end
    end

    def byFilter(filter)
      filter ? select {|d| d.checkFilter(filter)} : Array.new
    end

    def exceptFilter(filter)
      filter ? reject {|d| d.checkFilter(filter)} : this
    end

    def filterReadyToConnect
      select {|d| d.ready == true && d.present == true && d.usage.nil? }
    end

    def asConnectUrlList
      @devices.map {|d| d.remoteConnectUrl}
    end

    def select
      DeviceList.new(@devices.select {|d| yield(d)})
    end

    def reject
      DeviceList.new(@devices.select {|d| !yield(d)})
    end

    def empty?
      @devices.empty?
    end

    def size
      @devices.size
    end

    def asArray
      @devices
    end
  end
end